Finding the Fourth Proportional to 2,003.76, 2,765.52 and 1,258.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.76 : 2,765.52 = 1,258.35 : x
2. Step 2: Convert to fraction form
   2,003.76/2,765.52 = 1,258.35/x
3. Step 3: Cross multiply
   2,003.76x = 2,765.52 × 1,258.35
4. Step 4: Simplify right side
   2,003.76x = 3,479,992.09
5. Step 5: Solve for x
   x = 3,479,992.09/2,003.76
6. Step 6: Final answer
   x = 1,736.73